1. This Form 4 is filed jointly by Lone Star Value Investors, LP ("Lone Star Value Investors"), Lone Star Value Investors GP, LLC ("Lone Star Value GP"), Lone Star Value Management, LLC ("Lone Star Value Management") and Jeffrey E. Eberwein (collectively, the "Reporting Persons"). Each of the Reporting Persons may be deemed to be a member of a Section 13(d) group that collectively beneficially owns more than 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose.

2. Securities owned directly by Lone Star Value Investors. Lone Star Value GP, as the general partner of Lone Star Value Investors, may be deemed the beneficial owner of the securities owned by Lone Star Value Investors. Lone Star Value Management, as the investment manager of Lone Star Value Investors, may be deemed the beneficial owner of the securities owned by Lone Star Value Investors. Mr. Eberwein, as the manager of Lone Star Value GP and sole member of Lone Star Value Management, may be deemed the beneficial owner of the securities owned by Lone Star Value Investors.

3. Securities held in an account separately managed by Lone Star Value Management ("Separately Managed Account I"). Lone Star Value Management, as the investment manager of Separately Managed Account I, may be deemed the beneficial owner of the securities held in Separately Managed Account I. Mr. Eberwein, as the sole member of Lone Star Value Management, may be deemed the beneficial owner of the securities held in Separately Managed Account I.

4. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.1700 to $0.1900. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote 4 to this Form 4.

5. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.1385 to $0.1600. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote 5 to this Form 4.